i tend to agree with FDD. im also leaning toward that theyre not really rooted yet.
i would stop misting them and put them under a dome. if they perk up within a day they arent rooted yet. i call mine rooted when i can take off the dome for an hour or two and they dont start to look like yours. i wouldnt mist them nearly as often either. its my opinion that if you give them all they want via thier leaves why should they try to grow roots? keep your rockwool damp but not soaked by any means.